Transmitter.



UNITED STATES Patented July 19, 1904.

HARM C. ROSE, OF ROSEMONT, NEBRASKA.

TRANSMITTER.

SPECIFICATION forming part of Letters Patent No. 765,635, dated July 19,1904.

Application filed .T 1115r 29, 1903.

T0 a/ZZ whom, it' may concern.-

Beit known that I, HARM C. ROSE, a citizen of the United States,residing at Rosemont, in the county of Webster and State of Nebraska,have invented new and useful Improvements in Transmitters, of which thefollowing is a specification.

My invention relates to new and useful improvements in transmitters; andits object is to provide a contact adapted to be vibrated by sound-waveswhereby a series of sounds of different volume may be accuratelyindicated to a deaf person, thereby producing sensations which can withpractice be used to interpret the sounds producing the vibrations.

With the above and other objects in view the invention consists inproviding a drum having diaphragms within it, from which project pins orother suitable contacts adapted to touch the skin of the person usingthe device, so that when the pins are vibrated correspond-v ingsensations are produced upon the skin.

The invention also consists in the further novel construction andcombination of parts hereinafter more fully described and claimed, andillustrated in the accompanying drawings, showing the preferred form ofmy invention, and in which- Figure l is a section through my improvedtransmitter, and Fig. 2 is an inner elevation thereof.

Referring to the figures, it will be seen that the device comprises adrum 7, divided, by means of partitions 8, into circular compartments 9.Within each of these compartments is arranged a diaphragm l0, and thesediaphragms are of different sizes, and each has a pin 11 extendingtherefrom through an aperture l2, formed in the rear face of drum 7Apertures 13 are formed in the front faces of the drum and in alinementwith the diaphragms, and these apertures are of different sizes,according to the diaphragms adjacent thereto. The series of apertures 13are inclosed by a frusto-conical flange 14.. By em- Serial No. 167,410.(No model.)

ploying the device herein described the diaphragms will not be vibratedunless the sound produced is sufficiently strong; otherwise only aportion of the diaphragms will be vibrated, and it will thus be seenthat the volume of the sound produced will be indicated by the number ofdiaphragms vibrated.

In using this device the same is strapped or secured in any othersuitable manner, preferably to the temple of the person using the same,and when a sound is produced adjacent the transmitter the diaphragmswill be vibrated thereby and cause the needles to vibrate upon the skin.It will be obvious that the number and character of the vibrations willchange according to the character of the sounds produced, and it willtherefore be understood that with practice these differences in thevibrations can be distinguished and the sounds interpreted.

In the foregoing description I have shown the preferred form of myinvention; but I do not limit myself thereto, as I am aware thatmodifications may be made therein without departing from the spirit orsacrificing any of the advantages thereof, and I therefore reserve theright to make such changes as fairly fall within the scope of myinvention.

Having thus described the invention, what is claimed as new isl. Atransmitter of the character described comprising a drum having inletsand outlets in opposite faces thereof, partitions interposed between thesaid faces and forming independent compartments, each having an inletand an outlet, a diaphragm within each compartment and interposedbetween the inlet and outlet thereof, a contact secured in eachdiaphragm and projecting through the outlet, and a flange inclosing theinlets and projecting from the drum.

2. In a transmitter of the character described, the combination with adrum having compartments therein; of a diaphragm within eachcompartment, said diaphragms being of different diameters, and a contactextending from each diaphragm and projecting from the drum.

3. In a transmitter of the character described, the combination with adrum having compartments therein, and each compartment being providedWith an inlet and an outlet; of a diaphragm Within each compartment,said diaphragms being of different diameters, vand a pin extending fromeach diaphragm through I0 the outlet adjacent thereto and a iangeinclosing the notches.

In testimony whereof I afx my signature in presence of two Witnesses.

HARM C. ROSE. Witnesses:

JOHN C. ROSE, L. B. QUIGGLE.

